Abstract
Power Electronics systems can provide solutions to power quality problems in the form of active filters and advanced SVCs (STATCOM). A conventional approach involves a pulse-width-modulated converter which is interfaced to the utility voltage (for example at 13.8 KV level) through a line-frequency transformer. This increases the size and the cost of the system and introduces additional losses. This paper describes a per-phase, all-active approach where the need for a line-frequency transformer is eliminated by series connected converters. This all-active solution is a hybrid combination of two (or more) converters switching at line frequency (or its low multiple) and one converter pulse width modulated at a higher switching frequency. This paper includes the following: Criteria for optimization, experimental results from a proof-of-concept laboratory prototype for an active filter application and a comparative evaluation with the six-switch PWM converter for an SVC application.
Original language | English (US) |
---|---|
Pages | 726-731 |
Number of pages | 6 |
State | Published - 1997 |
Event | Proceedings of the 1997 23rd Annual International Conference on Industrial Electronics, Control, and Instrumentation, IECON. Part 2 (of 4) - New Orleans, LA, USA Duration: Nov 9 1997 → Nov 14 1997 |
Conference
Conference | Proceedings of the 1997 23rd Annual International Conference on Industrial Electronics, Control, and Instrumentation, IECON. Part 2 (of 4) |
---|---|
City | New Orleans, LA, USA |
Period | 11/9/97 → 11/14/97 |